It appears that Derek Hough it’s infected with the virus swine flu,reason that he skipped his performance.
"Wednesday I got home around 1 a.m. after rehearsing and choreographing (the Michael Jackson tribute). By 3 a.m., I was sicker than a dog," Hough narrated. "My whole bed was drenched because I sweated so much. I had to sleep in the bathtub. I’ve been sick a thousand times but something was different about this; I literally couldn’t walk or move but I eventually went to the doctor and got some IVs in my arm because I was so dehydrated."
He must be confident that this is nothing comparing with other diseases,many people die daily cause of certain ones,AIDS is the most crucial and sources say that soon we will see a vaccine for this terrible disease.